An RV and Tent Campsite. I arrived around 10:30pm and there were many tent camping sites available. Each is self check in for $15 a site. Tent camping is the first left turn, directly across from the payment kiosk. There are bathrooms, not super clean though and the code to get in them is: press 1 then hold down 3 and 5 together.
Place: River Park
Location: 34.64689, -120.43239